Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ovpn: fix NULL dereference when killing missing key ovpn_crypto_kill_key assumes both crypto slots are populated and dereferences each slot before checking it. That is not guaranteed: a peer can have only one installed key, and the kill path may be asked to remove a key that is not present. Read each slot once while holding the crypto state lock, check for NULL before looking at key_id, and only replace the slot that actually matches.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 89d3c0e4612afa1c6429ed68d298e35592fbe208 before a47a080d06ee9d94dc6a2da0fc2b9beeeedb92b3; affected 89d3c0e4612afa1c6429ed68d298e35592fbe208 before acf32a5dff082044cf0fd9492f3c10b7357c15ee; affected 89d3c0e4612afa1c6429ed68d298e35592fbe208 before 41d44ac7a61e2f74453af40d4fe1b82af9ea0ada |
| Linux / Linux | affected 6.16; unaffected 0 before 6.16; unaffected 6.18.46 through 6.18.*; unaffected 7.1.10 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.